Vehicleseat camera not working after you use it once?

I don't get why this is happening. There's a local script parented to a server script, then parented to a vehicleseat. I'm trying to make an RC car. The first time the camera works good, but then the second time you use it, it just does not want to focus on the car. Why is this happening!? Serverscript:

print("Camera script loading")
local newscript = script.CameraChange:Clone()
script.Parent.ChildAdded:Connect(function(weld)
    if weld.Name == "SeatWeld" then
        local h = script.Parent.Occupant
        wait()
        if h.Sit == true then
            newscript.Parent = h.Parent 
        end  
    end
end)

localscript:

Camera = game.Workspace.CurrentCamera
Object = game.Workspace.HPIBlitz.HPIBlitz.Shell
Player = script.Parent.Humanoid
Camera.CameraSubject = Object
Camera.CameraType=3
while wait() do
    if Player.Sit == false then
    Camera.CameraSubject = Player
    script:Destroy()
    end
end